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    • 81. 发明授权
    • Surge absorber
    • 浪涌吸收器
    • US06285535B1
    • 2001-09-04
    • US09403594
    • 2000-03-10
    • Masahiko Nakamura
    • Masahiko Nakamura
    • H01T410
    • H01T4/12H01T4/10
    • An inductive lightening surge installed at input and output circuits or other locations of circuits of communication devices where a surge noise may be generated or a surge absorber for avoiding failure and erroneous operation of electronic devices by mixed contact or the like of AC circuits in which a first terminal electrode 2, a conductive film 5 having a micro-gap 3 and a second terminal electrode 4 are formed in shapes of concentric circles on an insulating substrate 1 in a flat plate shape.
    • 安装在可能产生浪涌噪声的通信设备的输入和输出电路或电路的其他位置的感应放电浪涌或用于避免电路的故障和错误操作的浪涌吸收器,其中AC电路的混合接触等 第一端子电极2,具有微间隙3和第二端子电极4的导电膜5以平板形状形成在绝缘基板1上的同心圆的形状。
    • 82. 发明授权
    • Diversity receiving apparatus for a mobile unit
    • 用于移动单元的分集接收装置
    • US5777693A
    • 1998-07-07
    • US690904
    • 1996-08-01
    • Takaaki KishigamiMasahiro MimuraMakoto HasegawaTadaaki UshiyamaMasahiko NakamuraYoshinori Takagi
    • Takaaki KishigamiMasahiro MimuraMakoto HasegawaTadaaki UshiyamaMasahiko NakamuraYoshinori Takagi
    • H04B7/08H04N5/44H04N21/414H04N21/426H04N21/438H04N21/442
    • H04N5/44H04B7/0811H04N21/41422H04N21/4263H04N21/4383H04N21/44209
    • In a first diversity receiving apparatus, during an antenna selection operation, one of antennas are selected such that each of antennas successively connected to a receiver for consecutive horizontal retrace periods but for horizontal scanning periods following the horizontal retrace period, the selected antenna showing a largest level at the previous antenna selection operation is connected to the receiver to detect levels derived from respective antennas. The antenna showing a largest level is selected at the current antenna selection operation to receive a radio wave television signal for the following M (a natural number) horizontal scanning cycles. M is changed in accordance with the phasing condition. For example, M is changed according to a speed of vehicle, a field intensity, a frequency of the received television signal, etc. The switching circuit and tuner may be provided doubly to prevent the affection of switching noise. A second apparatus determines the selected antenna by further detecting noise levels derived from the respective antennas during a vertical retrace period. A frequency of switching of antennas for determining the selected antenna is reduced to reduce a switching noise on the reproduced image or in the reproduced sound.
    • 在第一分集接收装置中,在天线选择操作期间,选择天线之一,使得每个天线连续地连接到接收机,用于连续水平回扫周期,但是在水平回扫周期之后的水平扫描周期中,所选择的天线显示最大 先前天线选择操作的电平连接到接收机以检测从相应天线导出的电平。 在当前天线选择操作中选择显示最大电平的天线,以接收用于后续M(自然数)的水平扫描周期的无线电波电视信号。 M根据相位条件而改变。 例如,根据车辆的速度,场强,接收的电视信号的频率等来改变M。可以双重地提供开关电路和调谐器以防止开关噪声的影响。 第二装置通过在垂直回扫期间进一步检测从相应天线导出的噪声水平来确定所选择的天线。 用于确定所选择的天线的天线的切换频率被减小以减少再现图像上的切换噪声或再现的声音。
    • 86. 发明授权
    • Electrical connector
    • 电连接器
    • US5266038A
    • 1993-11-30
    • US883571
    • 1992-05-15
    • Masahiko Nakamura
    • Masahiko Nakamura
    • H01R13/648H01R13/432H01R13/658H01R9/09
    • H01R13/432H01R13/6594H01R12/712H01R13/6582H01R23/70
    • An electrical connector of the vertical type suitable for high-speed transmission including a hollow body member, the transverse width of which is shorter than its vertical thickness, a contact piece holding portion projecting from the body member, the transverse width of which is shorter than its vertical thickness, a plurality of contact piece engagement grooves formed in the thickness direction of the lateral sides of the contact piece holding portion, a plurality of concave holes formed in the contact piece holding portion, a plurality of through-holes formed in the front wall of the body member, and a plurality of contact-piece members formed by punching as a unitary structure. Each contact piece member has a stepped engagement portion and a pawl. The stepped engagement portion contacting the inner surface of the front wall of the body member, and the pawls contacting the outer surface of the front wall of the body member.
    • 一种垂直型的电连接器,适用于高速传输,包括横向宽度比其垂直厚度短的中空本体构件,从本体构件突出的接触片保持部分,其横向宽度短于 其垂直厚度,在接触片保持部的侧面的厚度方向上形成的多个接触片接合槽,形成在接触片保持部中的多个凹孔,形成在前侧的多个通孔 主体构件的壁,以及通过作为一体结构冲压而形成的多个接触件构件。 每个接触件具有台阶接合部分和棘爪。 与主体构件的前壁的内表面接触的阶梯接合部分和与主体构件的前壁的外表面接触的棘爪。
    • 88. 发明授权
    • Electrical connector forming plate over plate arrangement
    • 电连接器形成板在板上布置
    • US4934945A
    • 1990-06-19
    • US362985
    • 1989-06-08
    • Masahiko Nakamura
    • Masahiko Nakamura
    • H01R13/11H01R24/00
    • H01R13/11H01R12/52H01R12/57
    • The electrical connector forming a plate over plate arrangement is configured by a connector body, a plurality of female pins, male pins, and mount plates. Vertical through holes for insertion of the male pins and lateral holes for the female pins are provided with the connector body and intersecting respectively in the body, wherein a female pin each having a bifurcate portion at its tip is inserted into the lateral through hole so that the bifurcated portion is located at the intersection, and a male pin mounted on another plate to be connected is inserted in the vertical through hole. The bifurcated portion of the female pin each makes a contact with the male pin, when a plate mounted with male pins is approached closely to a plate mounted with a female pin-inserted connector body.
    • 形成板上布置的电连接器由连接器主体,多个阴销,公插针和安装板构成。 用于插入阳销和用于阴销的侧孔的垂直通孔设置有连接器主体并且分别与主体相交,其中在其顶端具有分叉部分的阴销插入到侧通孔中,使得 分叉部分位于交叉点处,并且安装在另一个要连接的板上的阳销插入垂直通孔中。 当安装有阳销的板靠近安装有插入插头的插头连接器主体的板时,阴销的分叉部分与阳销接触。